Received this error when posting a new tag to a group as admin:
string(60) "http://modestobuzz.com/groups/modesto-area-disk-golfers/edit"<br />
Warning: Cannot modify header information - headers already sent by (output started at /home/chedstone/webapps/modbuzz/wp-content/plugins/oci-contents/oci-contents.php:292) in /home/chedstone/webapps/modbuzz/wp-includes/pluggable.php on line 856<br />
Blank page with the above text on it. The tag was still added though.
Running BP 1.0 and WPMU 2.7.1